Spring sinker handle for drifters



Mann 30,1926; 1,578,4311

C. C. HANSEN SYRING SINKER HANDLE FOR DRIFTERS Filed oct.- 5 ,l 1925 l Y afriv 1HE-215x922. L l L l u INVEN Patented Mar. 3o, 1926."

l' CHARLES YC.HANSEN;or EASTON, PENNSYLVANIA; nssienoit'ro JLNGEnsoLLEAiiD 'Y ,Lasne COMPANY, 0E JEEsEY CITY,iniiw,l "JERSEY, A conronnroitor ivrivwI Ensnn.V

sra/ING SINKERHANDLEFORKDEIETERSL` Application mea oct'oer 5, 192,5. vseriaig-Nbconosl 1 l To all ywhom it `'may concer/n.5 Y w Beit known that I, CHARLES dent of Easton, county of Northampton, and State of Pennsylvania,have invented-a certain Spring Sink'er Handle`fforDrifters,VV

of' which' the following is specification accompanied by drawings.

This'invention relates to rock drills but more particularlyv to a meansV for converting n a hammer drill ofthe A"drifter,t'y'peinto va hand-held drill of. the' 4sinker.A or plunger type.' r V Hammer Vdrills 4of the aforesaid Leyner. or drifter type are vintended tobe used mounted on either columns, tripods, -or

quarry bars,' and vare not 'equipped' with handles for manual operation in vertical4 Due to their greatvwelght' down drilling. v it is rusually impossible to use them without somesuch support as a tripod. or column.

But inthe case ofl thelighter` drifters, yweighing 125 lbs. or less,k without' the cradles, it is often desirable `to use `these drills as sinkersfand pluggers, and thus out down on the equipment. necessary 1 fo'rla small quarryl orfexcavating job.

Oneofv the obyects of this invention,rthere, fore, is to provide a simplerugged, detach,- a-ble handle Ifor use with a lighttrock drill of,the;Leynei"7 o-r-drifter type. 1 Y

Another object of vthis invention *listoy providel a handle which, through its simplicity, may be quickly and conveniently applied to the rock drill, Vwithoutany appreciablev loss oftime. A third object of this invention is to provide an easily attachable handle for the aforesaid type of drill which will also absorb a great deal of the vibration and kick back of the piston, which is very considerable with a drill of the drifter type and which would otherwise be transmitted to the hands and arms of the operator, mak-l ing the drill vdiiiicultto operate.

My invention consists of thecombination'y Figure 2 is a detailed' vertical sectional view of the handle and so much of the drill as will serve to make the invention clear,

ing` in the directiorrof the 'arrowsandi Figure isya :furthenenlarge'd jcrossjsecT tional view ,of the drill 1Valong the.:V line 343 inEigure'Q looking inf-thedirection.ofthev .arrows. y f .-3 j'f Referring tothe drawings, thecylinder A taken along the rline in llligureil',"look` C. HANSEN,v` a citizenl of the 'United States, and aresiof apercussivefluid actuatedy rockd-rill'is held in fixed relation'lto the-backand 'front heads B land C respectively vby 'means ofthe customary side bolts D, which engage ifthe .lugs onl thev front lhead and the, lugs f. F (shown in iFigureQI) on-the back head.y

These lside loolts D 'in turnarefittedwith Athe usualcoil springs and double locknuts'and .-j

Washers, which howeverl do not enter into the invention.. o The cylinder vAhascast integral with it the usual slides or ribs G intended tomiit into the grooves provided in the; cradle ofa drifter mountingfor. the

fdrill. lThe yhandle itself consists of rthree' general Velements asfollowsthe bracketsll, legs J and cross handle bar X. The brackets HaareY cylindrical in formi andy grooves4 K 1 have been cut in `therngtofit over the ribs or slides'G of thefdrillcylinder, Retaining lugs L are alsogmade integral lwith the .brackets forjengagem'eiitv between the 'back v head lugs F, and the heads of the'qside lbolts 11 f D.v A ,crossfbrace ZOU?y between the, two

se, Y

brackets H'lpreferably attached to; v the brackets by bolts serves to strengthen the brackets in, relatie'n tqeach, other.v 'The brackets-H have fhollow bores to receive'tlil handle legs J which are likewise preferablyV Vhollow and threaded in the inside bores Q.

In the assembly thereof the legs J enter the bores of the brackets H at one end, and are heldin place by threaded studs R, which enter and engage the threaded bores Q, of the legs and are held in relation to the brackets H by means ofthe stud .nuts S.: Coil springs T 4are Valso insertedA in the bores of they brackets H, and are compressedbetween-the bottoms'of the legs J and the shoulders in the bore of the brackets H. The legs J are suitably attached to the hollow cross handle bar X which may be covered with some resilient material such as rubber hose.v A handle rod VV' of any Vpreferred4 length extends through the cross handle bar K and is fitted at both 'ends with the'nuts W. -The application of this handle to a drill and its use therewith is asfollows: Assumingthat a drill of thev Levnerlor` 1 drifterr typev is lto ybe usedas a hand-held drill, the operator first backs it oft' its cradleA t to the.v general elements of the lcombination whichprovide for the"v adequate bracing oill thejhandle against theditferent longitudinal and. vertical strainsjset up by'y its mede-fof Asi;

by means of the usual crank attached-to ythe y cradle. .He then loose'nsthey sidebolts D withdraws'them, and holds the drill'prerf'erably in a Vertical positionwith its back head B uppermost; As a yconvenient mode of as-L semblage the brackets II,f assemblcd kwith legsJ,the crossbar K, and the cross brace;

O may "then runV over-'theslides 0r ribslGr untilv the retaining ylugs L stop' against Vthe lugs E and are drawn up` tight.` Thefdrill drill maybe used. 'anrnot totbennd'er? stood .as limiting my, inventionpto the exact and precise details'foi' the drawings butinore use.'v Y

Iclaim: Y, Y. i l .A 1.A spring handle for attachment toa kfluid operated 'percussive rock drill of the drifter type,comprising handle brackets having grooves adapted to engagey Vthe usual Vribs or slides-on the cylinder of' therock drill, a cross bracebetween the said brackets, l

lugs, onsaidbrackets corresponding to the back head lugs of the rock drill, for attachf ing the said bracketsto the cylinder by .meansjof the usual side bolts, ra handle at- Y tached'to said brackets,'and spring means within said bracket-sA for absorbingthe vibra'n tion of the rock drill. f v l l 2. A spring handle for attachment t0 'a luidactuated percussive rock ydrill Vof the vdrifter `ty`pe,' comprising handle brackets V'having retaining lugs integral 'therewith for vattaching said bracketsto there/ck.y drill by meansof the usual back -head lugs and side. bolts, said brackets alsohavinggrooves for slidable engagement with the usual ribs yor slides of the rock drill cylinder, across "-,bra'ce betweenlsaid brackets, legs iitting into said' brackets, ay cross barattachedv to said legs, and spring means between said brackets and'sa'i'd legs for'absorbing of the rock drill.y

rthe vibration 3. A` spring'handleior attachment lto uid'actuated percussive rock drillv or" the drifter' type, comprising hollow handle brackets, .a cross braceholding said brackets in spaced relationship. to each other, said brackets being formed with grooves `for. engagement lwith the usual ribsor slides onv theV rock. drill cylinder, for vholding theV 'brackets in longitudinalrelationship to the Y cylinder, retaining lugs integral.with said y `[bramkets forlengagement betweenv the usualV `back headflug's andv the heads 'of said sideV vbolts vof the drillforpreve'nting longitudinal movement vrof the said brackets,l shoulders atv ma Y one. end'ofi the hollow "boresof theabrackets, Y

legs enteringV said cylindrical Vbores in said brackets and Istud bolts enteringthe brackets from the endslopposite to the legs `for retaining the .legs inthe brackets by 'engagelment with interiorlyv tlireade'dends of the said legs, securing means at the opposite ends of said' bolts bearing against theL said brackets',4c0il springs in the bores of the brackets y surrounding said stud bolts and compressed between the' ends of the said legs and Vthe saidV shoulders in the boreso'f said brackets, a hollow cross bar. joining saidlegs, a resilient outerl covering on fthe vsaidV cross bar,

hollow cylindrical interiorly threadedhandleV a handle rod through saidY crossl bar, and

nuts ateach end of said handlev rod.k

In testimony whereof I have signed this specification, 1

CHARLES C.. ,HANsEN 

